Improved amalgamator



H. L. HOPKINS. AMALGAMATOR.

wwmmrs y i g 3 a ed in a horizontal position on legs a. lower part-'ot' the interior of this cylinder 'is' provided withdies or plates b, betweenwvhich UNITED STATES PATENT OFFICE.

L. HOPKINS, OF SANFRANUISGO, CALIFORNIA.

IMPROVED "AMALGAMATOR.

Specification forming part of Letters Patent No. 44,422, dated September 27, 1864.

all? whom it. may concern: Be it known that I, H. L. HoPK1Ns, of San Francisco, in the county of San Francisoand State of California, have invented a new and Improved Amalgamator; and I do hereby declare that theiollowing is a full, clear, and exactdescription thereof, which willenable others skilled in theart to make and use the same, reference being had to the accompanymg drawings-,forrning part of this specification, in Which- Figure 1 represents a longitudinal vertical section of a portion of my invention, taken in the line :10 :1, Fig.4, Fig. 2, a transverse I vertical section of the same; taken in the line within it and provided ,with shoes, all being constructed and arranged in such a manner that all particles ofthe quartz or rock will be brought in contact with the quicksilver and the metal contained in the quartz or rock thoroughly amalgamated, and without cutting up or grinding the quicksilver so that the latter will be liable to float off with the scum on the water, as is 'now the case to av great extent, and which involves a considerable loss in quicksilver.

A represents a. cylinder, which is supp tlu it- Darrow spaces '0 are altowed to form cutting or grinding surfaces and recesses to catch and i hold the quicksilver. (See more particularly .Brepresents a muller, which maybe described as bein' an oblique section of acyli'nder which for san ellipse. This mulleris placed-obliquely on a shaft, '0, and extends the whole length of the interior of the cylinder A.

aspiral spring, E, bearing upon it, in order to keep the mailer pressed in close contact with the dies or plates b. This pressure, however, may be regulated 'by means of gages E E at each end of cylinder A, said gages being (See Fig. 3.) I By constructing the mullen-iu-the manner .as-described a diagonal-or oblique movement simply screws fitted in nuts 0.

of the face of the muller over 'the' dies or plates is obtained, which causes every particle of the rockor quartz to be brought in contact'with the quicksilver which lies in the spaces 0 between the dies or plates b, and a thorough amalgamation of the metal is the ,0, in combination. with the cylindrical case A,

all arranged substantially as and for the purpose set forth.-

1 2. The plates or dies b, with the spaces 0 between them inthe cylindrical case A, and the shoes at on'the mnll'er B, when said parts i are applied to or' used in combination with the case and Inuller, for the purpose specified.

H. L. HOPKINS. Witnesses E. P. PEOKHAM,

L. N. SNYDER. 

